/**
* OWASP Benchmark Project v1.2
*
* This file is part of the Open Web Application Security Project (OWASP)
* Benchmark Project. For details, please see
* <a href="https://www.owasp.org/index.php/Benchmark">https://www.owasp.org/index.php/Benchmark</a>.
*
* The OWASP Benchmark is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Foundation, version 2.
*
* The OWASP Benchmark is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* @author Nick Sanidas <a href="https://www.aspectsecurity.com">Aspect Security</a>
* @created 2015
*/

package org.owasp.benchmark.testcode;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(value="/xpathi-00/BenchmarkTest00118")
public class BenchmarkTest00118 extends HttpServlet {
	
	private static final long serialVersionUID = 1L;
	
	@Override
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		javax.servlet.http.Cookie userCookie = new javax.servlet.http.Cookie("BenchmarkTest00118", "2222");
		userCookie.setMaxAge(60*3); //Store cookie for 3 minutes
		userCookie.setSecure(true);
		userCookie.setPath(request.getRequestURI());
		response.addCookie(userCookie);
		javax.servlet.RequestDispatcher rd = request.getRequestDispatcher("/xpathi-00/BenchmarkTest00118.html");
		rd.include(request, response);
	}

	@Override
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/html;charset=UTF-8");
	
		javax.servlet.http.Cookie[] theCookies = request.getCookies();
		
		String param = "noCookieValueSupplied";
		if (theCookies != null) {
			for (javax.servlet.http.Cookie theCookie : theCookies) {
				if (theCookie.getName().equals("BenchmarkTest00118")) {
					param = java.net.URLDecoder.decode(theCookie.getValue(), "UTF-8");
					break;
				}
			}
		}
		
		
		String bar;
		
		// Simple if statement that assigns constant to bar on true condition
		int num = 86;
		if ( (7*42) - num > 200 )
		   bar = "This_should_always_happen"; 
		else bar = param;
		
		
		try {
			java.io.FileInputStream file = new java.io.FileInputStream(org.owasp.benchmark.helpers.Utils.getFileFromClasspath("employees.xml", this.getClass().getClassLoader()));
			javax.xml.parsers.DocumentBuilderFactory builderFactory = javax.xml.parsers.DocumentBuilderFactory.newInstance();
			// Prevent XXE
			builderFactory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
			javax.xml.parsers.DocumentBuilder builder = builderFactory.newDocumentBuilder();
			org.w3c.dom.Document xmlDocument = builder.parse(file);
			javax.xml.xpath.XPathFactory xpf = javax.xml.xpath.XPathFactory.newInstance();
			javax.xml.xpath.XPath xp = xpf.newXPath();
			
			response.getWriter().println(
"Your query results are: <br/>"
);
 
			String expression = "/Employees/Employee[@emplid='"+bar+"']";
			response.getWriter().println(
xp.evaluate(expression, xmlDocument) + "<br/>"
);

			
		} catch (javax.xml.xpath.XPathExpressionException e) {
			// OK to swallow
			System.out.println("XPath expression exception caught and swallowed: " + e.getMessage());
		} catch (javax.xml.parsers.ParserConfigurationException e) {
			System.out.println("XPath expression exception caught and swallowed: " + e.getMessage());
		} catch (org.xml.sax.SAXException e) {
			System.out.println("XPath expression exception caught and swallowed: " + e.getMessage());
		}
	}
	
}
